Heel-breasting machine



Oct. 21, l924- H. M. LOOMER HEEL BREASTING MACHINE original Filed June 22. 191e 2 sneed-sheet l WVM/70@ Hummm@ mw www H.M.LOOMER HEEL BHF-'ASTI NG MACHINE Original Filed June 22. 191 2 Sheets-Sheet 2 23 /A/VE/VTi/ Patented @et 2l, 1.924.

SVEATS 1,512,882 P arsur` erstes,

HENRY M. LOOMER, 0F BEVERLY, BIASSACHUSETTS, ASSIGNOR TO UNITED SHOE MACHINERY CORFORATION, 0F PATERSON, NEW JERSEY, CORPORATION 0F NEW JERSEY.

HEEL-BREASTING MACHINE.

Application med June 22, 191s, serial No. 241,393. Renewed November 22, 1922.'

To all rwhomy it may concern:

Be it known that I, HENRY M. LoolirER, a citizen of the United States, res`ding at Beverly, in the county of Essex and State of Massachusetts, have invented certain Improvements in Heel-Breasting Machines, of which the following description, in connection With the accompanyfng drawings. is a specilication. like reference characters on the drawings indicating like parts in the several figures. f

This invention relates to machines for operating upon the heels of boots and shoes and particularly to machines 4for forming heel breasts which have a curvature longitudinally of the heel such, for example, as the breasts of Louis heels.

The breast face of a modern Louis heel is usually formed with at least three curvatures which merge into each other to form a face or compound curvature. f The longitudinal curvature of the heel is generally greatest midway of the extent of the breastV face, the portion next the tread face having little or no curvature in this direction and the portion which extends .toward the toe of the shoe having but slight longitudinal curvature where it merges into the shank. The' shank portion of the breast, however, must have a convex, transverse curvature to enable itto correspond with and merge into the transverse curvature of the shank. Furthermore, the breast face of the heel between the shank portion and the tread face should be curved transversely of the heel. the curvature being generally concave relatively to the heel. In prior machines. these different curvatures have been secured, if at all, by separate operations performed by different cutters.

An objectof this invention is to provide a machine in which the breast face of a Louis heel may be completely formed in a single operation of the machine by a single cutter.

A further objectof the invention is to provide a machine which will be both effective and convenient in operation and which can be operated with entire safety to the operator.

A feature of the invention consists in a rotary cutter of novel shape and construction, the cutting edges of whichy trace, as the cutter rotates, a pear-shaped body, that` is, a body having a portion approximating the shape of a truncated cone combined with a portion of substantially spherical curvature. The spherical portion of the cutter is preferably nearly hemispherical in form. As shown herein, the cutter comprises a shank and a plurality of cutter blades prefv erably formed integrally with the shank and extending from the shank in divergent relations for a distance and then bending to- Ward each other along curved lines. Between the ends of the cutter blades is a separate.non-cutting portion which is adjustable in the direction of the axis of the cut` ter and serves as a guard to prevent the central end portion of the cutter from cutting into the shank of the shoe. The non-cutting portion also serves as a guide during relative movement of the shoe and cutter in breasting the heel and enables the front edge of the portion of the breast which overlies the shank to be trimmed flush with the shank. Means is provided for locking the non-cutting portion in adjusted position. Preferably the hemispherical end of the cutter is more or less fiat-tened at its end portion adjacent to the non-cutting central portion.

Another feature of the invention consists in an organization including a heel holder, a pear-shaped rotary cutter arranged with its axis extending in the direction of the height of the heel in the holder, and means for effecting relative movement of the shoe vholder and cutter transversely of the cutt'er axis to cause the cutter to traverse the heel from side to s'de to effect the breasting operation and form the longitudinal -curvature of the heel. The axis of the cutter is arranged end on W'th relation to the shoe and the spherical curved portion treats the'- more `sharply curved portion of the breast and the portion extending over the shoe shank. The portion of the heel overlying the shank has a less curvature than the intermediate portion of the breast and hence and shoe holding means to cause relative traverse of the cutter and heel from side t Aside of the heel and to4 cause the cutter to follow the transverse curvature of the shank. Preferably and as shown herein, the shoe holder is movable about a center,- the location of which relatively to the cutter may be varied and which is so located for a given shoe that as the shoe holder is turned about it the cutter is caused to follow the curvature of the shank of the shoe along the line where the heel breast merges into the shank. During this operation the non-cutting central end portion of the cutter may rest against the portion of the shank which is beyond the heel t'o prevent theJ cutter from cutting into the shank while/ the curved cutting end port-ion of the cutter trims the base portion of the heel to the desired longitudinal andl transverse curvature, causing it to merge into the surface of the shank. As shown herein, the shoe holding means is arranged for adjustment toward and from the cutter to adapt the machine for operation on shoes having heels of different heights.

Another feature of the invention consists in novel means for relatively moving the shoe and cutter longitudinally of the shoe and heel to cause the cutter to form a transverse curvature on the heel breast preferably during the relative traverse of the cutter and heel. As shown herein, the relative movement consists of a movement of the shoe holding means about a center, which movement is effected by a cam during movement of the shoe across the cutter. The said center is preferably so located as to cause a greater longitudinal movement of the portion of the breast adjacent to the tread face of the heel than the other portionsof the heel breast. The transverse curvature of the heel is, therefore, more pronounced at the portion of the breast adjacent to the tread face than at'other portions of the heel breast. The transverse,1 curvature may be either concave, convex, or straight according to the form of the cam employed.

Another feature of the invention consists 1n improved shoe position and shoe clamp- .in'g means which, as shown, comprise a plate to receive the tread face of a heel, means for locating the heel longitudinally and centrally of the plate, and means for engaging the tread face of the forepart and the sides of the forepart, said side engaging means being` preferably constructed rand arranged for equal and opposite movement 4toward and from the sides of the shoetogether with lmeans for forcing them yieldingly toward the shoe and adjustable means for limiting their closing.. movement. The novel clamping means by which the shoe is held against the positioning means as herein shown comprises manual y operable means for measuring the height of the shoe and last and means for applying manually powerful clamping pressure to the last to hold it against the shoe positioning means. The clamping pressure is applied in the construction shown by means of a lever and an inverted toggle and the parts are constructed and arranged automatically to effect release of the measuring means upon release of the clamping means.

These and other features of the invention will appear more fully from the following detailed description when read in connection with the accompanying drawings and will be pointed out in the appended claims. In the drawings,

Fig. 1 is a side elevation of the machine;

Fig. 2 is a front View, partly in section, showing the shoe positioning means;

Figs. 3 and 4 are detail views illust-rating the relation ofthe cutter to the shoe heel;

Fig. 5 is a detail to be'referred to; and

Fig; 6 is a view of the cutter.

lReferring' to Fig. 1 of the drawings, the

numeral 2 indicates a column or base on the upper portion `of which is secured a head 4 having journals 6 and 8 for a shaft 10 which is provided with a driving pulley 12. In `one end of the shaft 10 is a threaded hole to receive the threaded shank 14 of a cutter shown in detail in Fig. 6. The shank is preferably arranged to bottom in the hole of the shaft 10. As herein shown, the cutter comprises two blades 16 and 18 preferably formed in- .f

tegrally with the shank 14 and curved as shown so that When revolved they describe a pear-shaped body. The ends of the blades 16, 18 are formed to embrace the circular head 2() of a stem 22 which is threaded into the shank 14 and is provided with holes 24 holding and manipulating mechanism is provided which is mounted on a bracket 30 rigidly secured to the column 2. The bracket 3() has a dove-tailed guideway to receive a dovetailed guideV 32 on a slide 34. The slide 34 is adjustable in a direction parallel with the shaft 10 by means of a screw 36 threaded intoI the bracket 30 and having a collar 38 which engages a recess in the slide 34, a thumb head 40 being provided for turning the screw. A block 42 rests on the upper face of the slide 34 and is provided with a T-shaped groove to receive a pivot block 44 which has a pivot stud 46 extending through the slide and provided with a' nut 48 which lies in a recess in the guide 32. The pivot block 44 is provided with teeth 50 on its upper face, which teeth are engaged by pinion teeth 52 formed on a shaft 54 extending through the block 42 from side to side and provided at one outer end with an adjusting arm 56. The upper end of the arm 56 carries a spring pin 58 adapted tc engage any one of an arcuate row of holes 60 in the block 42. The pin 58 may be withdrawn, to permit movement of the arm 56, by a thumb head 62.A Movement of the arm 56 will, of course, adjust the block 42 toward and from the cutter while the pivot. stud 46 permits the block 42 to be turned about the stud as a center, the lower face of the block 42 then sliding over the upper face of theA slide 34. 1

A carrier 68 lies between upstanding ears 70, 70 on the block and is pivoted to them by a pin 72. The forward y:end of the carrier 68 is formed with an` upstanding portionv 74 having a iat vertical surface 76 (Fig. 2) to be engaged by theftread face of the heel of a shoe being treated and'on the surface 76 is adjustably held a plate'7 8 having a V-notch to center land support the rear end of the heel. The plate 78 isv formed with slots 80, 80 and screws 82, 82 pass through the slots and are threaded into the portion 74 to hold the` plate 78 in adjusted position. Arms 86, 87 are pivoted to the carrier 68 at 88, 89 and extend upwardly, one at each side of the shoe. The arms 86, 87 are curved, as shown in Fig. 1, to avoid contact of the arms with the cutter and have at their upper ends angularly formed portions to engage the bottom and sides of the forepart of the shoe. Referring to Fig. 2, the surfaces 90 engage the bottom ofthe forepart of the sole and the surfaces .91, the sides of the shoe or sole. The arms' 86, 87 have adjacent to their pivots inwardly extendin portions which are geared together at 93 gFlg. 2) to insure equal and opposite movement of the arms when either is swung on its pivot and the arm 87 is provided with a projection 92 below its pivot, which projection enoages the end of an adjusting screw 94 and tlimits the movement of the arms to- Ward each other, this movement being effected by a tension spring 96 connected between the arms. By this construction, the arms may be set by the screw 94 at the proper -distance apart to receive a shoe of the widthbeing treated or they may be separated against the spring 96 to receive a shoe wider than that for which the arms are set.

The carrier 68 is extended forwardly as a downwardly curved portion 100. A lever 102 is pivoted on the pin 72 and at its outer end has a handle 104. A lever 106 is pivoted at 108 to the extension 10.0 and is connected at 109 between its ends to the lever 102 by a link 110 pivoted at 111 to the lever. Obviously, when the handle 104 1s raised, the

upper end of the lever 106 will be moved outwardly or awa-y from the shoe and conversely will be moved inwardly when the handle is depressed. On the inner end of the lever 102 beyond its pivot 72 is an extension 99 in which is a spring plunger 101'arranged to engage frictionally a suitable curved surface 103 formed on the carrier 68. When the lever has been depressed to bring the pivots 111, 109 'and 72 in substantial alinement, the plunger 101 engages a suitable stop 105 on the carrier 68. On the upper end ofthe Alever 106 is pivoted at 107 a sleeve 112, through which a rod 114 freely slides, its inward movement when no shoe is in the machine being limited by an adjustable collar 116. The rod 114 is hollow for a part of its length and has a slot 117 throughu which a pin 118 extendsw-hichl pin is anchored in the sleeve 112. A tension spring 120 is located in the hollow part of the rod 114 and is connected at one end to the pin 118 and at the other to a pin 122 in the outer end .of` the rod.. The spring 120 tends, therefore, to hold the collar 116 on the rod against the sleeve 112 when no shoe is in the machine, and, when a shoe is inserted, holds a heel pin 118,011 the end of the rod in the pin hole of the last. The rod preferably has a flange 115 to engage the cone of the last. The pin 118 also keeps the rod from turning in the sleeve. On the lower side of the rod 114 are formed outwardly directed ratchet teeth 124 which are engaged by a pawl block 126 sliding in a boss on the sleeve 112 and having teeth tov engage the teeth 124.A The lower end of the block 126 has a notch which is engaged by one end of a lever 128 fulcrumed between its ends at 130 to a downward extension of the sleeve 112 and having its outer end depressed by a spring 132 seated in a hole in a boss134 on the sleeve 112. By upward pressure on the outer end of the lever 128 the block 126 is withdrawn from holding engagement with the teeth 124, allowing the rod to be withdrawn against the spring 120 by aV knob 136 on the outer end of the rod.

Upward pressure is applied to the outer end of the lever 128 by a surface 129 on the lever 102 when the handle 104 is raised to release clamping pressure on the shoe. The rod 114 may then be withdrawn andthe shoe placed in the machine with the tread face of its heel against the plate or surface 76 and its forepart betweenthe surfaces 91, 91 of the arms 86, 87 and against the surfaces 90, 90 ofthe arms. The rod 11'4 isthen released, the spring 120 moving the pin`1'13 into the thimble of the last and the collar 115 engaging the crown of the last. This operation measures the height of the shoe and last, and when the lever 102 is depressed by its handle 104, the pawl 126 is lirst released causing the rod 114 to be locked to the ,Sleeve 112 and then causing powerful preslsure to be applied to the last by the straightening of the inverted toggle comprising the parts 102, 110 to clamp the shoe against the tread engaging surfaces 90, 76. Raising the lever handle 104 to release the clamping pressure on the shoe unlocks the rod 114 so tlat it can be withdrawn for removal of the s oe.

Extending rearwardly from the carrier 68 are projections 140, 142 through which a'threaded rod 144 extends freely. A thumb nut 146 on the rod 144 between the projections 140, 142 serves to adjust the rod 1ongitudinally. ASecured to the lower end of the rod 144 is a block 148 which is kept from turning by engagement of one of its Hat faces with a similar face onthecarrier 68. In the block 148 is mounted a roll 150 which engages a cam plate 152 having a tongue 154 engaging a groove in the slide 34 and held in position by bolts 156. A tension spring 160 is connected between pins 162, 164 on the carrier 68 and on the block 42 respectively. When the carrier 68 is swungl about the pivot 46, the spring 160 holds the roll 150 against the cam plate 152 and permits movement of the carrier about the pivot 72 as the cam 152 acts on the roll 150.

In the operation of the machine, the shaft 10 is driven at high speed. The operator seizes the lever and swings the carrier 68 about the pivot 46 until the ortion 74 is at one side of the cutter. He t en raises the lever 104 to release the pawl 126 and pulls the rod 114 outwardly a ainst the spring 120.v A shoe, the heel 0% which is to be breasted, is then placed with the tread face of its heel against the surface 76 of the part 74 with the rear face of the heel in the notch in the plate 78. The forepart of the shoe is positioned between' the surfaces 91, 91 and against the surfaces 90, 90 of the arms 86, 87. The rod 114 is then released and the bpin 113 caused to enter the pin hole of the last, variation in the location of the pin hole on dilierent lasts being taken care of by movement of the sleeve about the pivot 107. The handle 104 is now depressed, thus causing the lever 102 and the link 110 to act as an inverted toggle to force the uper end of the lever 106, the sleeve 112 an by engagement of the pawl 126 with the teeth 124,

1 also the rod 114 toward the shoe to clamp it firmly against the surfaces 76 and 90. When the pivot points 111, 109 and 72 are in alinement, the spring plunger 103 on the lever 102 engages the stop 105 and the parts become locked in position with the shoe securely jacked.

Supposing the heel breast is to be straight transversely the cam 4plate 152 will be lat and the shoe will simply' swing on its carricr in a plane parallel to the slide 34. This movement of the shoe and its carrier takes place about the pivot 46 which is located,

relatively to the shoe, at the center of curvature of the shank portion of the sole. The swinging movement of the shoe causes a relative traverse of the heel and cutter to form a transversely straight breast and to cut the base portion of the heel that overlies the shank to the curve of the shank. Adjustment for dilerent heights of heels is made by moving the arm 56, causing movement of the block 42 on which the carrier 68 is mounted in the direction of the height of the heel while the pivot 46 of the carrier remains in the same position. The shanks of shoes, however, may vary somewhat in transverse curvature and this variation is provided for by adjustment of the screw 36 Aby the xhead 40to move the pivot 46 in the direction of the height of the heel. This adjustment also allows the radius of curvature of the movement of the Shanks of shoes to be maintatined the same when adjustment is made for heels of different heights. In

case the shoe is to be breasted with a trans-V versely concave heel breast, a different cam is put on in place of the cam 152, for example, the cam 152 shown in Fi 5. When this cam is used, the heel wil be moved vertically, that is, len hwise of the heel as it is swung horizonta ly by the cutter, the rise of the cam 152 acting on the roll 150 to move thev carrier 68 about the pivot 72 and cause it to rise and fall as it passes the cutter. This will cause the cutter to form the heel breast with a transversely concave curvature, the concavity of which is more pronounced adjacent to the tread face of the eel than at other portions of the breast. Of course, if. desired, a cam with a central depression may be used which will give the breast a convex formation.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent of the United States is:

1. Ina' machine for treating the breasts of Louis heels, a rotary shaft, and a cutter on the end of the shaft arranged to rotate on its longitudinal axis, half of its longitudinal cross-section corresponding in curvature to the longitudinal curve of a Louis heel including the forwardly extending base portion.

2. In a machine for treating the breasts of Louis heels, a rotary shaft, and a cutter on the end of the shaft shaped to trace when in rotation a body elongated in the direction of its axis and enlarged at its free end, the cutter being so shaped that relative movement between the cutter and a shoe transversely of the axis of the cutter with said axis adjacent to the line of junction of the forwardly extending base portion of the heel with the shank will cause the breast portion and base portion to be formed with the pro er curvature and the shank portion forwar of the heel to bel unalected.

3. ln a machine of the class described, a rotary cutter having cutting edges portions of which trace a substantially hemispherical curved surface Whenin rotation, the cutting edges being discontinued on a small area adjacent to its center of rotation, said area be- `ing substantially lflush with the cutting ting portions of substantially uniform section branching from the shank portion, extending in divergent relation and then converging along a circular curve.

6. A cutter for heel breasting machines comprising a shank portion, edged. cutting portions of uniform section. branching from the shank portion and extending in diver` gent relation, and then converging in curved lines, and a non-cutting portion arranged between the converging ends.

7. A cutter for heel breasting machines comprising a shank portion, cutting portions having edges branching from the shank portion, said 'portions extending in divergent relation to form a hollow center, and then converging in curved lines. .and a disk between the ends of the cutting portions.

8. cutter for heel breasting machines comprising a shank portion, cutting portions having edges branching from the shank portion and extending in divergent relation and then converging in curved lines, and a disk between the ends ofthe cutting portions arranged for adjustment in the direction of the axis of the cutter.

9. A cutter for heel breasting machines comprising a shank portion, cutting portions having edges branching rom the shank portion and extending in divergent relation and then converging in curved lines, a disk between the ends of the cutting portions, and a stem on the disk threaded into the shank portion.

10. Arotary cutter for shoe machines having an end cutting portion conforming to the longitudinal curve of a Louis heel. and noncutting means of relatively small diameter on its end adjacent to its axis, said means be-y ing constructed and arranged to engage the shank and to prevent the cutting action of the cutter upon the shank during the breasting' operation.

11. A rotary cutter for shoe machines having an end cutting portion, and non-cutting means on said cutting portion adjacent to Y the axis of the cutter to engage the Work for limiting the cutting action of the cutter, said means being constructed and. arranged for adjustment to vary the action of the noncutting means.

12. A rotary cutter for shoe machines having an end cutting portion, noncutting means in the center of said end constructed and arranged for adjustment to vary the action of said end cutting portion, and means for locking said non-cutting means in adjusted position.

13. In a machine for breasting Louis heels, a shoe support, a pear-shaped cutter arranged With its axis substantially perpendicular to the, shoe bottom with its larger end toward the shoe shank and having a noncutting portion at the center of said larger end to bear on the shank of the shoe beyond theportion of the heel overlying the-shoe shank and to protect the shank from the cutting action of the knife, and means for effecting relative movement between the cutter and the support to cause the heel to 4be breasted from side to side.

14. Arotary cutter for breasting attached heelshaving a cutting portion corresponding in shape to the longitudinal curve of a Louis heel and a non-cutting portion adjacent to its axis and adapted to rest against the shank portion of the shoe to prevent cutting of the shank While the heel breast and the Shank portion thereof are being breasted by relative movement of the shoe and cutter transversely of the heel.

15. A rotary cutter for breasting attached heels having a cutting portion corresponding in shape to the longitudinal curve` of a Louis heel and a non-cutting part adapted to serve as a guard for the shoe shank when the breast of the shoe heel is presented to the cutter and to enable the heel to be` breasted and the base portion of the heel to be trimmed substantially Hush with the shoe shank.

16. A pear-shaped rotary cutter forbreasting attached Louis heels whenl presented to the cutter with the tread face substantially perpendicular to the axis of the cutter and the shoe and cutter are moved relatively laterally o the heel, said cutter having a non-cutting portion adjacent to its axis constructed and arranged to bear upon the shank of the sole and serve as a guide during the relative movement of the shoe and cutter in the breasting operation to enable the portion of the Louis heel which overlies the shank to be trimmed at its front edge substantially flush with the shank.

17. In a machine for breasting heels, the

combination of means for holding a shoel 18. Ina machine for breasting heels, the combination of a heel support, a pearshaped rotary cutter mounted on an axis extending in the direction of the height, of a heel on the support, and means constructed and arranged for eliecting relative movement of the cutter vand the supp-ort to cause the heel to be breasted.V

19. In a machine of the class described, the combination of a rotary cutter having cutting edges, portions of which trace a substantially conical surface when in rotation and portions of which trace a substantially spherical surface when in rotation, means for presenting a shoe heel to the cutter, and means for eii'ecting relative movement between the cutter and the heel to effectfbreasting of the heel from side to side of the heel.

.20. In a machine of the class described, the combination of a rotary cutter having cutting edges which trace a substantially conical surface when in rotation, means for presenting a shoe to the cutter, and means for effecting relative movement of the cutter and the shoe presenting means to cause the cutter to trim the heel breast fromvside to side in a path parallel to the curved shank of the shoe.

21. In a machine of the class described, the combination of a rotary cutter having cutting edges which trace a substantially hemispherical surface when in rotation, means for presenting a shoe-,to the cutter, and means for eiecting relative movement of the cutter and'shoe to cause the cutter to trim the base of the heel from side'to, side and form' thereon a surface curved longitudinally of the shoe.

22. In a machine for breasting Louis heels after attachment to the shoes, thecombination of a cutter arranged for rotation about an axis perpendicular to the plane of the tread face of the heel and having acutting edge contoured to correspond to the. longitudinal curvature of thel heel breast, means for holding the shoe, and means for relatively moving the shoe holder and cutter to effect relative movement transversely of the heel and cutter to form the heel breast.

23. A machine of the class described having, in combination, a support for the tread face of the heel of a shoe, and a rotary cutterr having an end cutting portion and arranged With its end face directed towardA the shank'of the shoe, said support and cutter being constructed and arranged for relative movement about a center located substantially at the center of transverse curvature of the shank to cause the cutter to follow the curve of the shank during said relative movement.

24. A machine of the class described having, in combination, means for supporting the tread face of the heel of a shoe, and

a rotary cutter having an end cutting portion and a side cutting portion and arranged with its end cutting portion directed toward the shank of the shoe and its side cutting portion directedto the breast of the heel, said support and cutter being constructed and arranged for relative movement to cause the end cutting portion of the cutter to folloW the transverse curve of the shank and the side cutting portion to traverse the heel breast from side to side.

25. A heel breasting machine having, in combination, means for supporting the tread face of the heel of a shoe, and a rotary cutter having an end cutting portion and arranged with its axis directed toward the shoe bottom, said support being constructed and arranged for movement about a center located substantially at the center of transverse curvature of the shank.

26. A heel breasting machine having, in combination, means for supporting the tread faces of the heel and forepart of a shoe, and a rotary cutter having an end cutting portion and arranged With its end portion directed toward the shoe sh'ank, said support and cutter being constructed and arranged for relative movement to cause the end of the cutter to follow the transverse curvature of the shank of the shoe.

2T. In a machine of the class described, the combination with a rotary cutter and a holder for a shoe constructed and arranged to hold the shoe with the tread face ofthe shoe heel substantially perpendicular to the axis of the cutter and to move across the acting face of the cutter, of means for effecting relative movement'of the rest and cutter to cause the cutter to follow the transverse curve of the shank during the 'breasting operation. 'f

"28. A machiney for breasting heels having, in combination, shoe holding means, a rotary cutter having its axis arranged sub stantially perpendicular to the shank of the shoev adjacent to the heel breast and having a cutting edge shaped to correspond withv the side edge `ot the breast, and means for moving the shoe holding means about a center located at the center of curvature of the shank of the shoe to cause the cutter to trim the base portion of the heel to the transverse curve of the shoe shank.

29. A machine for breasting heels having, in combination, shoe holding means, a rotary cutter having its axis arranged substantially perpendicular to the shank of the shoe adjacent to the heel breast and having a cutting edge shaped to correspond With the side edge of the breast, means for moving the shoe holding means about a center located at the center of curvature of the shank of the shoe to cause the cutter to .trim the base portion of the heel'to the transverse curve of the shoe shank, and means for adion ZIO

justing the position of said center to adapt the machiner for operation on shoes having shanks of diti'erent transverse curvature.

30. A machine for breasting heels having, in combination, shoe holding means, a rotary cutter having its axis arranged substantially perpendicular to the shank of the shoe adjacent to the heel breast and having a cutting edge shaped to correspond with the side edge of the breast, means for moving the shoe holding means about a center located at the center of curvature of the shank of the shoe to cause the cutter to'trim the base portion of the heel tothe transverse curve ofthe shoe shank, and means for varyingthe position of the shoe holding means in the direction of the height of the heel to adapt the machine for operation onshoes having heels of diierent heights.

31. A machine for breasting heels having. in combination. shoe holding means, a rotary cutter having its axis arranged substantially perpendicular to the shank of the shoe adjacent to the heel breast and having a cutting edge shaped to correspond With'the side edge of the breast, means for moving the shoe holding means about a center 'l0- 'cated at the center of curvature of the shank of the shoe to cause the cutter to trim the base portion of the heel to the transverse curve of the shoe shank.V and adjustable means for var ving the position of the shoe holding means longitudinally of the cutter' axis and securing the shoe holding means in predetermined relation to the cutter yto accommodate shoes having heels of dilerent height.

32. In a machine of the class described, the combination of a rotary cutter having `cutting edges which trace a substantially vlateral curve of the shank at the base of the heel.

33. In a machine for breasting Louis heels, the combination of a rotary cutter presented end on to a shoe shank, Said cut` ter having cutting edges contoured to trim the breast and base portion of the heel, and a shoe support constructed and arranged for movement to cause the cutter to breast the heel in a direction from side to side of the heel and to follow the curve of the shank.

34. In a machine for breasting Louis heels: the combination of a rotary cutter presented end on to a shoe shank, said cutter having cutting edges contoured to trim the breast and base portion of the heel, a shoe support, and means for effecting relative movement of the' cutter and shoe support about a center so located as to cause the heel breast to be trimmed from side to side of the heel and the base portion of the heel to be trimmed to the curve of the shank.

35. In a machine for breasting Louis heels, the combination of a rotary cutter presented end on to a shoe shank, said end of the cutter havinfr cutting edges Which trace a substantially spherical surface asythe cutter rotates'. and a shoe holder, said cutter and shoe holder being constructed and arranged or relative movement to cause the cutter to trim the base portion of the heel with a longitudinal curve and also with a transverse curve following the curve of the shoe shank. y

36. In a `machne for breasting Louis heels, the combination of a rotary cutter presented end on to a shoe shank, said end of the cutter having cutting edges which trace a hemispherical surface as the cutter rotates, and a shoe holder, said shoe holder being constructed and arranged for movement relatively to the cutter to cause the cutter to cut the base portion of the heel in a longitudinal curve and also in a curve following the transverse convex curve of the shoe shank.

37. In a machine for breasting Louis heels, the combination of a rotary cutter presented end on to a shoe shank, said end of the cutter having cutting edges which trace a substantially spherical surface as the cutter rotates, and a shoe holder, said shoe holder being constructed and arranged for movement relatively tothe cutter about a center so located as to cause the cutter to cut the base portion of the heel in a longitudinal culjve and also in a curve following the transverse curve of the-shoe shank. 38. A heel breasting machine having, in combination, shoe positioning means, 'and a rotary cutter having its ax`s directed substantially perpendicularly to the longitudinal median line of the shoe, said positioning meansvand cutter being arranged for relative movement to cause the cutter to traverse the heel breast and for movement longitudinally of the heel.

39. In a machine for breasting Louis heels after attachment to theA shoes, the combination of a cutter arranged for rotation about an axis substantially perpendicular to the plane of the tread face of the heel and having a cutting edge contoured to correspond to the longitudinal curvature of the. heel breast, means for holding 'the shoe, means for eiecting relative movement of the cutter and shoe holder tofcause the cutter to traverse the heel breast, and means for relatively moving the shoe support and cutterv in a direction longitudinally of the shoe to cause the cutter to form a transversely curved breast.

40. In a machine of the class described, the combination of a rotary cutter mounted on a horizontal axis, a shoe holder arranged to hold a shoe with its longitudinal inedian plane vertical and its shank substantially perpendcular to the axis of the cutter, said holder being arranged also for movement to carry the shoe across the acting face of the cutter, and means for moving the shoe holder and the cutter relatively to produce on the heel a laterally curved breast when the shoe is carried across the cutting face of the cutter.

41. In a machine of the class described, the combination with a rotary cutter and a rest for the shoe constructed and arranged to position the shoe with the curve of the shank substantially perpendicular to the axis of the cutter and for movement about an axis across the acting 'face of the cutter, of means for moving the shoe rest about said axis to cause the cutter to follow the transmeans for measuringthe height of the shoe and last, and meansfor effecting powerful pressure through the measuring means against the last to hold the last againstthe shoe positioning means.

43. A machine of the class described having, in combination, a ,rotary cutter constructed and arranged for presentation end on to the bottom of a shoe. means for positioning the shoe Jfor the action ofthe cutter, means for measuring the -`height of the shoe and last, and means comprising a toggle for applying pressure to the last through the measurng means to hold the shoe clamped against the shoe positioning means.

44. A machine of the class described having, in combination, a rotary cutter constructed and arranged for presentation end on to the bottom of a shoe, means for positioning the shoe for the action of the cutter,

means for measurng the height of the shoe and last, means for effecting powerful pres-V sure through the measuring means against the last to hold the last against the shoe positioning means, and means constructed and arranged to act upon initialmovement of the pressure' applying means to hold the measuring means against retraction. i

' 45. A. machine of the class described having, in combination, a rotary cutter constructed and arranged for presentation end on to the bottom of a shoe, means for positioning the'shoe for the action of the cutter,

for locking the measuring means, and means for unlocking the measuring means after the pressure applying means-is released.

46. In a machine of the class described, shoe positioning means comprising a plate to receive the tread face of the heel of a shoe, means for locating the heel longitudinally and centrally of the plate, means for engaging the tread face and sides of the forepart of the shoe, said side engaging means being constructed and arranged for equal and opposite movement, and means for adjustably limiting their movement toward the shoe I 47. In a machine of the class described, shoe positioning means comprising a V- shaped member to engage the rear end of the heel, members arranged to engage the oppositesides of the forepart and the bottom of a shoe, adjustable means for limitin movement of the members toward eacheot er, and means for vieldingly holding the members against said limiting means.

48. In a machine of the class described, shoe positioning means comprising in combination, a V-block to locate' the rear end of the heel, members arranged to engage the opposite sides of the orepart of a shoe, connections between the members to cause equal and opposite `movement of the members when one of them is moved, and means for yieldingly holding the members toward each other.

49. In a machine for breasting Louis heels, the combination of 'a pear-shaped cutter, a shoe support, and meansconstructed and arranged for moving relatively the cutter and the support to cause the heel of a shoe on the support to be breasted with a longitudinal curvature corresponding to that of the cutter.

50. In a machine for breasting heels, the combination of a heel support, a pearshaped cutter mounted on an axis extending in the direction of the height of a heel on the support, and means constructed and arranged for effecting relative movement of the cutter and the support to cause the heel on the support to be breasted'in a curve corresponding to the longitudinal curvature of the cutter.

5l. A heel breasting machine having, in combination, means for supporting the tread face of the heel of a shoe and a rotary cutter directed end on toward the shoe bottom, said` supporting means and cutter being constructed and arranged for relative movement about a center `to cause the cutter to follow the curvature of the shank.

52. A heel breasting machine having, in

combination, y, means for supporting the tread face of the heel of a shoe, a rotary cutter directed end on toward the shoe bottom,

said supporting means and cutter being constructed` and arranged for relative move-v heel longitudinally and centrally of the plate, means for engaging the sides of the fore part of the shoe, said side engaging means being constructed and arranged for equal and opposite movement, and means for' moving relatively the breasting means and the position means to effect the breasting operation. V

5,4.' A machine for breasting Louis heels comprising a shoe support, and av cutter constructed and arranged for relative move-y ment to cause the cutter to curve the heel breast longitudinally and also to curve the base portion o the heel correspondingly tothe transverse curve of the shoe shank and to concave the portion of the heel breast adjacent to the toplift. 55. A machine for breasting Louis heels comprising a shoe support and a cutter constructed and arranged for relative movement to cause the cutter to curve the heel breast longitudinally and also to curve the base portion ofthe heel correspondingly vto the transverse curve of the shoe shank and .transversely to concave the portion of theV heel breast adj acenttc the toplit, and means for eiecting the formation of said transverse curves coincidently with the yformation of the longitudinal curvature. l

56. In a machine of the class described, the combination of a single cutter for convexing the shank portion of a heel and for concaving the portion of the breast of the 'heel adjacent tor its treadface, and a heel -support between which and said cutter there is provision for relative movement to 4cause said cutter to o erate upon the heel.

57. In a mac ine of the class described, the combination of a rotary cutter, a shoe support to locate the shoe in predetermined position, manualmeans for moving the shoe transversely of the cutter axis, and means acting without attention on the part of the operator for eifectin oscillation of the shoe su port durin suc -movement about an axis substantie y arallel to the direction of the manually e ected movement of the shoe support.

the class described hav.- ing, in combination, a rota cutter having a fixed axis of rotation, s oe supporting means movable transversely of the cutter 58.' A. machine of axis to. cause the shoe to traverse the cutter from side to side of the heel, and means for causing the shoe to move about an axis parlallel to the direction of said transverse movement.' I

59. In a machine of the class described, the combination of arotary cutter, `a shoe support to locate the shoe in predetermined position, means for moving the shoe transversely ofthe cutter axis, means .for effecting oscillation of the shoe support during such movement about an axis parallel to its direction of movement. across the cutter,

'and changeable cam means for varying th extent of saidA oscillation.

60. In a machine for rotary 'cutter,.shoe holding means mounted breasting heels, a f

for swinging movements in planes at right v angles to each other, manual means .for movin the shoe holding means in .one of said p anes, and means acting in response.

to such movement to move the holding means in the other plane.

61. In a machine for breasting heels, a

yrotary cutter, shoe holding means mounted for swinging movements in planes at right angles to each other,` manual means for movin the shoe holding means in oneiof said p anes, and meansacting as'anincident to said manually effected movement to determine the transverse curvature of the heel breast.

62. In a machine for breasting heels, `a

rotary cutter, shoe holding means mountedy I for movement in two lanes at right angles to each other, vmanua means for effecting movement of the holding means in one plane relatively to the cutter, and means acting as an incident to such movement to determine relative movement ofthe cutter Iand shoe holder inthe other plane.

63;V In a machine of the class described, the combination of a heel support, a rotary cutter having a diameter less than the largest dimension of the heel and having its axis substantially perpendicular to the plane of the tread face rof the heel, and means for relatively moving the cutter and the heel in the direction of the length of support, means for effecting relative movement between the cutter and support toV cause the cutter to traversel the heel breast the heel to cause the cutter to form a vco'nlus from side to side of the heel, a cam operf ating during said lrelative movement to eiect relative movement Jbetween the cutter and shoe in such a manner that the breast, f of the heel 1s formed with a transverse curvature from the base of the heel toward its tread face, the cam effected relative movement being greater adjacent to its tread face than it -is adjacent tothe base of the heel,

65. In a machine of the class described, the combination of means for convexing the shank portion of a heel and for transversely concavlng the remaining portion Vof the breast of the heel, and a heel support between which and said means there is prov'vision for relative movement to cause said means so to operate upon the heel. l

66. In a machine of the class described, the combination of a rotary cutter, a shoe support to locate the shoe in predeterminedl position, means for moving the shoe transversely of the cutter axis, means acting as an incident to such movement to effect oscillation of the shoe support about an axis substantially parallel to -its direction of movement transversely of the cutter axis, and means for varying the extent of said oscillation.

vof the shoe supportl about said axis will cause a portion'of the heel breast to be cony caved, and means for`varyfing the relative position of the cutter and support in the J direction of the height of the heel.

68. -A machine of the class described having, in combination, a rotary cutter, a shoe support, means for eifectin relative movement between the cutter an the support to cause the cutter to traverse the heel breast from side to side of the heelyand means 0perating during said relative movement to cause the shoe to turn on an axis parallel to the plane of the heightwise extending portion of the heel breast and to calme the breast to be transversely curved.

69. A machine of the class described having, in combination, a rotary cutter, a shoe support, means for effecting relativexmovement between 'the cutter andthe support to cause the cutter to traverse the heel breast from side to side f the heel, and means operating` durin said .relative movement to cause a relatlve movement between the cutter and shoe in sucha ymanner that the breast of the heel is formed with a trans` verse curvature which is more pronounced adjacent to its tread face than Pat other portions of the heel breast.

70. In a machine of the class described, the combination of a rotary cutter, a shoe support to locate the shoe in predetermined position, means for movin the shoe transverselly of the cutteraxis, an means for effecting oscillation of the shoe support during such movement about an axis substantially paral- 1,512,ss2 I.

lel to the direction of its movement transversely of the cutter axis.

71. In a machine of the class'described, the combination of `a rota cutter, a shoe support to locate the shoe 1n predetermined position, means for moving the shoe-transversely of the cutter axis, and means acting as an incident to such movement for efectln'g oscillation of the shoe support about an axis parillel to the plane of the tread face of the hee l 72. In a machine 'of the class described, the combination with means for operating on a shoe bottom, of a shoe holder comprising a last support resiliently held toward said operating means, means engaging the tread face' of the heel for limiting movement of the shoe towardsaid operatin means to determine the position which t e shoe is caused to assume byn said resiliently held support, and means acting positively on the support so positioned to ei'ect a predetermined movement of the support toward-the tread engaging means to clamp the shoe in the holder.

-.73'. In a machine of the class described, the combination of a heel breasting cutter, means for. engaging the tread face of the shoe, a post yieldingly vheld Aagainst the last, and means comprising a toggle for forcin the post against the last.

7 4. n a machine of the class described, the combination of heel breasting cutter, means for engaging the tread `face of the shoe, a post yleldingly held. against the last for measuring the height of the last, and means comprising an inverted toggle'positively to hold the post against the las't.

teeth thereon, a spring for .pressing the ost.

against-the last to measure the height o the last, a pawl normally held out of contact with the ratchet teeth on the post, and means positivelyv 75. In a machine of the class described, the i for causing the pawl to engage the teeth and to move the pawl to apply pressure through the post to the last to hold the shoe against said tread face engaging means.

76. In a machine of the class described, the

' combination of a heel breasting cutter, means for engaging the tread face of the heel of a shoe, means engaging the lastto measure the height of the last by pressing it toward the tread engaging means,vand means for moving the last engaging means a predetermined distance forcibly to hold the heel against the l tread engaging means.

77. In a machine of the class described, the

combination of a heel breasting cutter, means for engaging the tread face of the heel of a shoe, a post, means for yieldingly forcing theA` post against the last, and means for moving the post unyieldingly through a predeter-v mined distance to force the against the last and therheel against the tread aceengaging means.

78. In a machine of the class described, the combination of a heel breasting cutter, means for engaging the tread face of the shoe, a post yieldingly held against the last for measuring the height of the last, means comprising a ratchet and pawl forengaging the post in the position it is made to assume by the measuring means, and means comprising an inverted toggle to force the post against the last.

79. In a machine of the class described, a heel breasti cutter, means for engaging the tread face o the heel of a shoe, said means being adjustably fixed as to movement heightwse ofthe heel, means for yieldingly pressing the shoe against the tread engaging said tread engaging means to hold the shoe for the breasting operation.

80. In a machine of the class described, a

heel breastin cutter, means for engaging the tread face o? the heel of a shoe, means for adjusting the tread engaging means relatively to the cutter to limit the action of the cutter relatively to the shoe shank, means for yieldingly pressing the shoe against the tread engaging means, and means for ei'ecting a predetermined positive movement of the shoe toward'said tread engaging means to hold the shoe for the breasting operation. In testimony whereof I have signed my name to thisspecication. Y,

HENRY M.' LOOMER. 

